// Copyright (c) 2008-2010, Arne Claus
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
// following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions and the following 
//   disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//   disclaimer in the documentation and/or other materials provided with the distribution.
// - Neither the name Arne Claus nor the names of any contributors may be used to endorse or promote products
//   derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef __INCLUDED_CRL_VERTEX_STREAM_DESCRIPTOR_H_
#define __INCLUDED_CRL_VERTEX_STREAM_DESCRIPTOR_H_

#include "CBL_Defines.h"
#include "CRL_Defines.h"

#define TYPE_FLAG_NONE  	 0
#define TYPE_FLAG_FLOAT 	 1
#define TYPE_FLAG_NORMALIZED 2

CB_DECLARE_SUBNAMESPACE(RenderLib)

class CBufferDescriptor
{	
public:
	
	RENDERLIB_API CBufferDescriptor();
	
public:
	
	RENDERLIB_API uint32 AddElement(EBufferFormat _Format);
	
    RENDERLIB_API void CalculateStride();
	void SetStride(uint32 _Bytes)							 { m_Stride = _Bytes; }
	
	EBufferType   GetBufferType() const						 { return s_BufferFormatInfo[m_ElementType[0]].m_BufferType; }
	EBufferFormat GetElementType(uint32 _ElementIndex) const { return m_ElementType[_ElementIndex]; }
	
	uint32 GetStride() const								 { return m_Stride; }
	uint32 GetNumElements() const							 { return m_ElementCount; }

public:
    
	void SetDynamic(bool _State)							 { m_Dynamic = _State; }
	void SetManaged(bool _State)							 { m_Managed = _State; }
	
    bool IsDynamic() const									 { return m_Dynamic; }
	bool IsManaged() const									 { return m_Managed; }
	
private:
	
	EBufferFormat	m_ElementType[MaxNumElements];
	
	bool			m_Dynamic;
	bool			m_Managed;
	
    uint32			m_ElementCount;
	uint32			m_Stride;
};

CB_SUBNAMESPACE_END

#endif